feat(i18n): implement comprehensive blog post enhancements

- Add avatar to personal info in data.ts
- Remove redundant headings from blog posts
- Reorder imports in utils.ts for consistency
- Implement new blog layout components including:
  - PostMeta for displaying post metadata
  - TableOfContents for navigation
  - BlogNavigation for post pagination
  - ShareButtons for social sharing
  - AuthorCard for author information
- Enhance BlogPostLayout with:
  - Improved typography and spacing
  - Responsive sidebar layout
  - Dark mode support
  - Better code block styling
- Remove outdated i18n guide documentation
- Add comprehensive styling for all new components

src/pages/zh/blog/posts/scaling-nodejs-docker.md

@@ -9,8 +9,6 @@ slug: "scaling-nodejs-docker"
 layout: "../../../../layouts/BlogPostLayout.astro"
 ---
 
-# 使用 Docker 扩展 Node.js 应用
-
 ![Docker 和 Node.js](https://images.unsplash.com/photo-1605745341112-85968b19335b?w=800&h=400&fit=crop&crop=center)
 
 Docker 彻底改变了我们部署和扩展应用程序的方式。当与 Node.js 结合使用时，它提供了一个强大的平台来构建可扩展、可维护的应用程序。在本指南中，我们将探索如何容器化 Node.js 应用程序并有效地扩展它们。